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decode() — netty Function Reference

Architecture documentation for the decode() function in WebSocketServerProtocolHandler.java from the netty codebase.

Function java ProtocolCodecs HTTP

Entity Profile

Dependency Diagram

graph TD
  ca63dc9d_3136_91f5_fca2_402a15bd197d["decode()"]
  24d9f96e_3f70_9b0f_3941_7e5455fcbe3b["WebSocketServerProtocolHandler"]
  ca63dc9d_3136_91f5_fca2_402a15bd197d -->|defined in| 24d9f96e_3f70_9b0f_3941_7e5455fcbe3b
  style ca63dc9d_3136_91f5_fca2_402a15bd197d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandler.java lines 235–250

    @Override
    protected void decode(ChannelHandlerContext ctx, WebSocketFrame frame, List<Object> out) throws Exception {
        if (serverConfig.handleCloseFrames() && frame instanceof CloseWebSocketFrame) {
            WebSocketServerHandshaker handshaker = getHandshaker(ctx.channel());
            if (handshaker != null) {
                frame.retain();
                ChannelPromise promise = ctx.newPromise();
                closeSent(promise);
                handshaker.close(ctx, (CloseWebSocketFrame) frame, promise);
            } else {
                ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            }
            return;
        }
        super.decode(ctx, frame, out);
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does decode() do?
decode() is a function in the netty codebase, defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandler.java.
Where is decode() defined?
decode() is defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandler.java at line 235.

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